JPS5722826A - One-body formation for double sink - Google Patents
One-body formation for double sinkInfo
- Publication number
- JPS5722826A JPS5722826A JP9809980A JP9809980A JPS5722826A JP S5722826 A JPS5722826 A JP S5722826A JP 9809980 A JP9809980 A JP 9809980A JP 9809980 A JP9809980 A JP 9809980A JP S5722826 A JPS5722826 A JP S5722826A
- Authority
- JP
- Japan
- Prior art keywords
- blank
- die
- punches
- punch
- hydraulic pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To deeply draw a sink by reducing a frictional resistance between a punch and a blank, by forcing a pair of punches into a die by adding a hydraulic pressure from the bottom of the punch.
CONSTITUTION: A blank 7 is mounted on a die 1 and clamped with a blank holder 6. A working oil is forced into a space between the bottom of punches 5a, 5b and the blank 7 by driving a pump 9 to add a hydraulic pressure P. Hereby, the blank 7 expands in cavities 3a, 3b of the die 1 and at the same time, the drawing of the flange part of the blank 7 clamped between the die 1 and the blank holder 6 begins. At this time, while increasing the hydraulic pressure P, the punches 5a, 5b are forced to press with a prescribed force F1 against a prescribed force F2 of blank supporting plates 11a, 11b. When the forming is advanced, the oil contained in the space between the bottom of the punch and the blank 7 is exhausted through a relief valve 13. By this method, the materials flow smoothly to the central side wall, and the sink is drawn deeply.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55098099A JPS5941811B2 (en) | 1980-07-16 | 1980-07-16 | Double sink integral molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55098099A JPS5941811B2 (en) | 1980-07-16 | 1980-07-16 | Double sink integral molding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5722826A true JPS5722826A (en) | 1982-02-05 |
JPS5941811B2 JPS5941811B2 (en) | 1984-10-09 |
Family
ID=14210883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55098099A Expired JPS5941811B2 (en) | 1980-07-16 | 1980-07-16 | Double sink integral molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5941811B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141328A (en) * | 1983-01-31 | 1984-08-14 | Matsushita Electric Works Ltd | Hydraulic forming method |
JPS63171400U (en) * | 1986-12-26 | 1988-11-08 | ||
KR20030051211A (en) * | 2001-12-18 | 2003-06-25 | (주) 와이 디 티 | Upper Dishpan table Manufacturing Apparatus And Manufacturing Method Thereof |
-
1980
- 1980-07-16 JP JP55098099A patent/JPS5941811B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141328A (en) * | 1983-01-31 | 1984-08-14 | Matsushita Electric Works Ltd | Hydraulic forming method |
JPH0332406B2 (en) * | 1983-01-31 | 1991-05-13 | Matsushita Electric Works Ltd | |
JPS63171400U (en) * | 1986-12-26 | 1988-11-08 | ||
KR20030051211A (en) * | 2001-12-18 | 2003-06-25 | (주) 와이 디 티 | Upper Dishpan table Manufacturing Apparatus And Manufacturing Method Thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5941811B2 (en) | 1984-10-09 |
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